Lithium–aluminum contacts for organic light-emitting devices
- 1 September 1997
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 71 (9) , 1151-1153
- https://doi.org/10.1063/1.119850
Abstract
Organic light-emitting devices have been prepared with multilayer Al–Li–Al cathodes in an ultrahigh vacuum molecular beamdeposition system. The optimum device characteristics are obtained when there is a single Al layer separating the Li layer from the organic materials.Ab initiomolecular dynamics calculations of the Al–Li interaction clarify the role of Al as a blocking layer to Li diffusion into the organic films as well as the behavior of the device when the thickness of this Al interfacial layer is changed.Keywords
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